(19) |
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(11) |
EP 1 642 944 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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17.06.2009 Bulletin 2009/25 |
(43) |
Date of publication A2: |
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05.04.2006 Bulletin 2006/14 |
(22) |
Date of filing: 21.04.1999 |
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(51) |
International Patent Classification (IPC):
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(84) |
Designated Contracting States: |
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DE FR GB |
(30) |
Priority: |
21.04.1998 GB 9808480
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(62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
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99918129.0 / 1090079 |
(71) |
Applicant: Coates Brothers |
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St Mary Cray
Orpington
Kent BR5 3PP (GB) |
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(72) |
Inventors: |
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- Caiger, Nigel Antony
Wells
Somerset BA5 1BE (GB)
- Selman, Hartley David
Saltford
Bristol BS18 3JN (GB)
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(74) |
Representative: Humphreys, Ceris Anne et al |
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Abel & Imray
20 Red Lion Street London WC1R 4PQ London WC1R 4PQ (GB) |
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(54) |
Radiation-curable vehicle for hot melt ink jet inks and inks using the same |
(57) A vehicle for a hot melt ink-jet ink comprises at least 30 % by weight of a radiation
curable material and a thickener. The vehicle is a thixotropic paste at 20°C, preferably
also at 25°C and has viscosity of less than 25 centipoise, preferably 12 centipoise
at at least one temperature in the range of from 40°C to 130°C. Another vehicle for
a hot melt ink-jet ink comprises a radiation curable material. The curable material
is a paste or a solid at 20°C, preferably also at 25°C and has a viscosity of less
than 25 centipoise, preferably 12 centipoise at at least one temperature in the range
of from 40°C to 130°C.